NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
Hi all, For those of you still running older versions of Tomcat, please upgrade to the latest version(s): ---------- Forwarded message --------- From: Mark Thomas <markt@xxxxxxxxxx> Date: Mon, Oct 12, 2020 at 3:59 AM Subject: [SECURITY] CVE-2020-13943 Apache Tomcat HTTP/2 Request mix-up To: Tomcat Users List <users@xxxxxxxxxxxxxxxxx> Cc: Tomcat Developers List <dev@xxxxxxxxxxxxxxxxx>, announce@xxxxxxxxxxxxxxxxx <announce@xxxxxxxxxxxxxxxxx>, < announce@xxxxxxxxxx> CVE-2020-13943 Apache Tomcat HTTP/2 Request mix-up Severity: Moderate Vendor: The Apache Software Foundation Versions Affected: Apache Tomcat 10.0.0-M1 to 10.0.0-M7 Apache Tomcat 9.0.0.M5 to 9.0.37 Apache Tomcat 8.5.1 to 8.5.57 Description: If an HTTP/2 client exceeded the agreed maximum number of concurrent streams for a connection (in violation of the HTTP/2 protocol), it was possible that a subsequent request made on that connection could contain HTTP headers - including HTTP/2 pseudo headers - from a previous request rather than the intended headers. This could lead to users seeing responses for unexpected resources. Mitigation: - Upgrade to Apache Tomcat 10.0.0-M8 *or later* - Upgrade to Apache Tomcat 9.0.38 *or later* - Upgrade to Apache Tomcat 8.5.58 *or later* Credit: This issue was identified by the Apache Tomcat Security Team. References: [1] http://tomcat.apache.org/security-10.html [2] http://tomcat.apache.org/security-9.html [3] http://tomcat.apache.org/security-8.html
thredds
archives: